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 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
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 * - Redistributions of source code must retain the above copyright notice, this list of conditions
 *   and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright notice, this list of
 *   conditions and the following disclaimer in the documentation and/or other materials provided
 *   with the distribution.
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 *   STMicroelectronics company nor the names of its contributors may be used to endorse or
 *   promote products derived from this software without specific prior written permission.
 *
 * - All of the icons, pictures, logos and other images that are provided with the source code
 *   in a directory whose title begins with st_images may only be used for internal purposes and
 *   shall not be redistributed to any third party or modified in any way.
 *
 * - Any redistributions in binary form shall not include the capability to display any of the
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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package com.st.BlueMS.demos.Audio.Utils;

import java.io.IOException;
import java.io.OutputStream;

public class AudioConverter {

    public static byte[] toLEByteArray(short[] in){
        byte[] out = new byte[in.length*2];
        int index =0;
        for (short val : in) {
            out[index++] = (byte) (val & 0x00FF);
            out[index++] = (byte) (val >> 8);
        }
        return out;
    }

    public static byte[] upSamplingSignalToLE(short[] data){
        byte[] out = new byte[data.length*4];
        upSamplingSignalToLE(data,out);
        return out;
    }


    public static void upSamplingSignalToLE(short[] in,byte[] out){
        int index =0;
        for (short val : in){
            out[index] =(byte) (val & 0x00FF);
            out[index+1] =(byte) (val >> 8);
            out[index+2] =(byte) (val & 0x00FF);
            out[index+3] =(byte) (val >> 8);
            index+=4;
        }
    }

    public static void upSamplingSignalToLE(short[] data, OutputStream out) throws IOException {
        for (short val : data){
            out.write(val & 0x00FF);
            out.write(val >> 8);
            out.write(val & 0x00FF);
            out.write(val >> 8);
        }
    }

    public static void toLEByteStream(short[] data, OutputStream out) throws IOException {
        for (short val : data) {
            out.write(val & 0x00FF);
            out.write(val >> 8);
        }
    }
}
